# 绝对值
x = -10
print(abs(x))

# 次方运算
y = 2
z = 3
print(pow(y, z))

# round函数运用
print(f'round(2.5):{round(2.5)}')
print(f'round(1.5):{round(1.5)}')
print(f'round(1.15, 1):{round(1.15, 1)}')
print(f'round(2.15, 1):{round(2.15, 1)}')
